I believe that of all twins who share identical genes with a schizophrenia victim, about one-half do not themselves develop schizophrenia. Schizophrenia is a mental disorder that usually appears in late adolescence or early adulthood. Characterized by delusions, hallucinations, and other cognitive difficulties, schizophrenia can often be a lifelong struggle.
Beak of birds change according to their climate and other conditions in their surroundings as the birds adapt to them.
Explanation:
The beak of the bird is the source from which it catches its prey so it is important for the survival of the bird that the beak remains effective for the use.
The competition from other species of birds may often trigger development in beaks for better suitability to the climate to become more effective than other species.
This happens through the process of adaptation as the birds adapt to their environment and then pass their genes down to their next generation through their inheritance in lineage.
Those would be enzymes I believe. They are the power house of the membrane and lower the amount of activation energy needed.
Im pretty sure its either, Ecosystem or Niche!